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EN 1.8959 Steel vs. EN 1.4857 Stainless Steel

Both EN 1.8959 steel and EN 1.4857 stainless steel are iron alloys. They have a modest 39% of their average alloy composition in common, which, by itself, doesn't mean much. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.8959 steel and the bottom bar is EN 1.4857 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
150
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 16
6.7
Fatigue Strength, MPa 220
120
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
78
Tensile Strength: Ultimate (UTS), MPa 570
500
Tensile Strength: Yield (Proof), MPa 340
250

Thermal Properties

Latent Heat of Fusion, J/g 250
330
Maximum Temperature: Mechanical, °C 420
1100
Melting Completion (Liquidus), °C 1460
1370
Melting Onset (Solidus), °C 1420
1320
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 39
13
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 2.7
34
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.6
5.7
Embodied Energy, MJ/kg 21
81
Embodied Water, L/kg 52
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78
28
Resilience: Unit (Modulus of Resilience), kJ/m3 300
150
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 20
18
Strength to Weight: Bending, points 19
18
Thermal Diffusivity, mm2/s 10
3.4
Thermal Shock Resistance, points 17
11

Alloy Composition

Carbon (C), % 0 to 0.19
0.3 to 0.5
Chromium (Cr), % 0.35 to 0.85
24 to 27
Copper (Cu), % 0.2 to 0.6
0
Iron (Fe), % 94.9 to 99
31.4 to 41.7
Manganese (Mn), % 0.45 to 1.6
0 to 2.0
Molybdenum (Mo), % 0 to 0.35
0 to 0.5
Nickel (Ni), % 0 to 0.7
33 to 36
Nitrogen (N), % 0 to 0.010
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.55
1.0 to 2.5
Sulfur (S), % 0 to 0.040
0 to 0.030
Zirconium (Zr), % 0 to 0.17
0